871444345265242 has 64 divisors (see below), whose sum is σ = 1632816665856000. Its totient is φ = 340165918310400.

The previous prime is 871444345265231. The next prime is 871444345265257. The reversal of 871444345265242 is 242562543444178.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1766496634 + ... + 1766989882.

It is an arithmetic number, because the mean of its divisors is an integer number (25512760404000).

Almost surely, 2^{871444345265242} is an apocalyptic number.

871444345265242 is a deficient number, since it is larger than the sum of its proper divisors (761372320590758).

871444345265242 is a wasteful number, since it uses less digits than its factorization.

871444345265242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 732767.

The product of its digits is 206438400, while the sum is 61.

The spelling of 871444345265242 in words is "eight hundred seventy-one trillion, four hundred forty-four billion, three hundred forty-five million, two hundred sixty-five thousand, two hundred forty-two".